Struggling GOP presidential primary contender Florida Sen. Marco Rubio is vowing to maintain his White House bid, batting back reports he was considering dropping out. With just days before a crucial primary in delegate-rich Florida, Rubio said rumors of his bowing out are “100 percent, categorically false.” “I am not dropping out, I am fighting all the way through,” he tells Fox News host Megyn Kelly in a Thursday night interview about the bruising race. “We’re going to win Florida.”